this post was submitted on 18 Jul 2026
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Cool Rocks
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A place for:
- Sharing cool rocks you found
- Discussing cool rocks
- Memeing about rocks
- Sharing rock facts
- Cool rocks
Minerals are cool, too.
Be gneiss to each other.
Please use posts for your rocks. Feel free to add more pictures and links to articles in the post text.
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That's super cool. Where is a good source to get samples of different minerals and rocks? - besides going outside, or eBay, or those overpriced geode stores in Banff. What do hobbiests do?
I stop by little rock shops in small towns while on road trips or AliExpress (I would argue it’s more ethical than Amazon at this point, plus you are not buying fast fashion, you are buying rocks).
You can get bags of mixed rocks for tumbling (but you don't have to tumble them) for pretty cheap. If you search "rocks for tumbling" you can find tons of suppliers. I find it cheaper and better to get them directly from suppliers. Most companies that make rock tumblers also sell rocks.